Ethylene glycol is used as a protecting group for carbonyl groups in organic synthesis. Treating a ketone or aldehyde with ethylene glycol in the presence of an acid catalyst (e.g., p-toluenesulfonic acid; BF3â¢Et2O) gives the corresponding a 1,3-dioxolane, which is resistant to bases and other nucleophiles.
Charles Street and Beacon Hill in Historic Boston, Massachusetts. Shops on Charles Street are an eclectic mix of boutiques, galleries, jewelry stores and home accessory shops with plenty of nearby restaurants, inns and historic sites.
A cutesy Beacon Hill street lined with eclectic shops and local flavors. â The Scene. Charles Street is the closest you'll get to jumping headfirst into a Charles Dickens novel--especially around the holidays, when you might even see a group of carolers. Old Boston architecture meets moneyed Beacon Hill society here.